Intermittent operating mechanism for lubricators.



B. H. SKELLY. INTERMITTENT OPERATING MECHANISM FOR LUBRICATORS.

APPLICATION FILED APR.ZI.1915.

1,160,539, Patented Nov. 16, 1915.

2 SHEETS-SHEET 1.

B. H. SKELLY. INTERMITTENT OPERATING MECHANISM FOR LUBRICATORS.

APPLICATION FILED APR. 21. I915.

1,160,539. Patented Nov. 16, 1915.

2 SHEETSSHEET 2.

INVENTUR 2.11. 5121979,

COLUMBIA PLANOURAPH (IO-,WASHINGTON, D. c.

pump ear s arena enrich BERNARD s ijniiii z; rsm ares counnerrcu'r, hssle ton To GREENE, TWEEID & on or NEWYT RK, 'N. Y., a CORPORATION orahw YORK.

mam/insane OPERATING MECHANISM FOR hassmsroas.

Application filed April 21, 1915.

To all whom it may concern:

Be it known that L BERNARD Ha SKELLY, a citizen of the United States residing at the city of Bridgeport, county of Fairfield, State of Connecticut, have invented certain new and useful Improvements in Intermittent Operating Mechanism for Lubricaters; and I do declare'the following to be a full, clear, and exact' description of the invention, such will enable others skilled in the art to which itappe'rtains tom'a'ke and use the same;

This invention relates to force feed lubricators such as are commonly used in conneotion with large engines, the oil'being distributed from the lubricator to the cylinders or to any desiredpar't of the engine. r

This improvement aims to insure either a minimum or a maximum oil feed irrespective of the length of thestroke of the engine or the rapidity thereof, this being brought about by positive adjustments as well as by a clutch feed whereby the shaft of the lubricator will be revolved intermittently in one direction only;

. cator, nor does this Invention pertain to the check valves which govern the supply system of the oil, and I therefore have not illustrated in detail nor will I describe the "construction of the lubricatore xcept only in so far as it has immediate relation to my im: provement.

In all lubrieators of the type illustrated, there is a shaft that is revolved intermittently to cause the piston to operate to deliver the oil into the supply pipe of the lubricator, and myinvention mainly relates to this intermittent revolution of the shaft, and in order that there may be no interruption in the supply of oil my improvement furthermore relates to the installation of the gage glass any breakage of which will be immaterial solar as the uniform and =re'gu lar supply of oil is concerned.

Referring to the accompanying drawing Figure 1 is a "front elevation of a lubricate! constructed in accordance with my improvement, Fig; 2 a detail broken elevation of the feedblock with the erank removed; Fig. 3 is detail rbroirensvi'ew at the inner ita'ee of spefcifieation of Letters Patent.

l atented Nov. 16, 1915.

Serial No.'22,810.

the crank. rear of the driving block and detent disk. Fig. 5 is a detail broken elevation of the feed block with the driving block andparts carried thereby removed, and Fig; 6 is a detail view, partly in section and in plan, of the driving block and parts carried thereby.

Similar numerals ofreference denote like parts in the several figures of thedra'win'g.

1 is the oil reservoir, 2 the feed block, 3 the cam slide, L the piston having an elongated opening 5 within which extends a finger 6 from the cam slide, and 7 is a long screw driven through the top of the piston and extending into the opening 5 and provided with a lock nut 8. All the part'sabo've more oi lessinto the opening;- 5 forthe usual purpose of regulating the e ective stroke of the piston which is caused by the impact of the finger 6 that'extends from the cam slide, and this is the ordinary way of controlling the action of this piston and has nothin to do with the present invention.

9 is the shaftofthe glubiicator whose revolution effects the movements of the cam slide and censequentlv the movements of the piswe, I will first describe the mechanism which I employ for intermittently rotating this shaft.

10 is what I term thedriving block whose hub l'l is splined on'the shaft 9, this driving block having a webportion 12 extending fromthe hub to the rim of theblo'ck, whereby the interior of the latter is divided into two recessed portions 18, 14, the former of which is omparatively shallow while the latter is comparatively deep.

Within the recess 14 "and loosely'journaled around the hub 11 is the driving clutch member 15 which has four substantially equi- Fig. 4 is a detail view of the -1- I al) distant stubs 16 which extend radially from the periphery of the member 15, so as to 1790 the narrow portions of these ways so asto lock together the driving block 10 and the clutch member 15. Immediately behind these rolls 17 are follower rolls 18 which contact the rolls 17 throughout their length,

and these rolls 18 are backed by two coil springs 19 whose rear extremities impinge 7 against the adjacent stubs 16. Theobject of employing these follower rolls is to insure a constant anduniform pressure against the rolls 17 so that the latter will not tilt sidewise, and the employment of two springs that contact the rolls 18 near the opposite ends of the latter renders the pressure of the rolls 18 even and constant.

By the employment of the comparatively long rolls 17 a more extended contact with the driving block and clutch member is brought about, but without the follower rolls these rolls 17 would readily tilt Side wise, particularly ifa single spring were employed between the same and the stubs, and this would, of course, in a short time render the device useless.

Since thelong contact is insured by these rolls 17 as above set forth, only one pair of these rolls is necessary, whereas if the ordinary short rolls were usedetheir number would have to be greatly increased in order to obtain an aggregate frictional contact of suflicient extent.

20 is the driving crank with which connection is madefrom any reciprocating part of theengine, and this crank terminates at the lower end in a plate 21 having an outwardly projecting hollow hub 22 which latter fits loosely around the outer extremity of the shaft 9.?

Extending from the rear of the plate 21 are two pins 23, 24, the former being stationary while the latter is adjustable throughout anarcuate slot 25 within the plate. These'pins, when the plate is in position with the hub 22.0ver the shaft 9, ex tend within the ways I), d, so-that during the reciprocations of the crank 20 said pins will strike against the walls of the adjacent stubs 16 to effect the revolution of theshaft 9 inthe manner now to be described.

Presupposing the pin 24 to be adjustedso as to stand at the extremelower end of 'the slot 25 asvis shown at Fig. 1, whilethe pin 23 is diametrically opposite, and referring particularly to Fig. 1, the movement of the cranktoward the left will cause'both pins to travel idly throughout the waysb, d, until they strike against the stubs 16 toward which theyapproach, and when they strike these stubs they will cause the member 15 to be rotated toward the left so as to bring the other twostubs withinthe range of the pins on the return movement of the crank, which opera tion is very simple and ordinary and is not of the essence of my invention. This movement of the member 15 toward the left Wlll draw the narrow portions of the ways a, c, away from the rolls 17, and therefore there Wlll -tion shown at Fig. 1 will adapt the improvement to a very long stroke and at the same time will effect the minimum intermittent rotation of the shaft 9, so that a very small amount of oil will be constantly supplied through the delivery pipe 26.

The maximum intermittent rotation of the shaft9 will be brought about by adjusting the pin 24 so that it would stand at the upper end of the slot 25, so that these pins would readily clamp or embrace two adjacentstubs 16, and therefore there would be no lost motion whatever between the crank and the member 15, and this position of vparts would provide for a maximum feed of oil. Of course, it will be readily understood that the intermittent rotation of the shaft 9 7, and lock nut 8, hereinbeforedescribed. are not necessary for the purpose of regulating the rotation of the shaft 9, but are merely.

necessary. in connection with the present-invention, in order to communicate motion from the cam slide 3 to the piston 4. j

In order that there may be no accidental revolution of theblock 10, and consequently the shaft 9. during the return movement of the cranlnor, in other words referring to Fig.

1, a movement of the crank toward the left, I have provided a detent construction which is housed within the recess 13in the rear of the block 10 which construction as well as its operation, I will now describe. 1

Within the recess 13 in the driving block 10 and loosely journaled around the hub 11 is a detent member 27 which is securely anchored to the feed block 2 through the medium of a pin 28, which extends from said block within a hole 29 in said member, so that it will'be clearly understood that the latter will be incapable of rotary movement. The periphery of this member 27 is cut away preferably at diametrically opposite locations so as to provide ways 6, andthis cutting away is efi ected'in such manner that driving movements, of the shaft 9lwh1ch would in these ways taper. at one en dysuch tapered portions extending in the same direction.

The outer circumference of the member 27 conforms generally to the inner surface of the rim of the driving blocklO, and the iioors of the ways 6 are eccentrically disposed so that they form these tapered portions in conjunction with said surface. Within the ways 6 are short rolls 30 which are backed by springs 31 that impinge against the end walls of the ways 6 at their widest portions, and since these rolls are torfere seriously with the proper feed of the oil, and, moreover, unnecessary wear ofthe parts is eliminated The usual handcrank 32 is provided and is screwed on the end of the shaft 9, so that the shaft may be rapidly revolved b hand at anv time in order to supply considerable quantities of oil in a short period of time should the occasion demand.

It is customary to place a given quantity of oil within the reservoir 1, and after the intermittent revolution of the Shaft 9 has been regulated, it is, of course, a simple matter to determine how lone the supply of oil will last. and therefore it is not at all necessary that the engineer should keep the lubricator under constant supervision. The level of the oil is ascertained from the gage glass 4:? which extends within and, is supported from the reservoir 1 bv the sockets 33,34. The glass is held against dislodgment by screw sldthreaded in the upper socket 33, while the lower side of socket 3-4: is closed by a s e 38 as, shown in Fig. 1, r

Having thus described my invention what I claim as new and desire to secure by Letters Patent is b 1. In a force feed lubricator, the combination with a stationary feed block, of an actuating shaft. a driving bloc I secured to the shaft, a driving clutch member so formed in conjunction with the driving block as to provide a tapering way. a clutch roll arranged within the way to clutch the driving block and member for movement in one direction. a clutch detent carried by the feed block and arranged to clutch the driv I ing block on reverse movement thereof to disconnect the clutch roll from the driving clutch members 9.111 a force feed lubricator, the combi- .nation of the actuating shaft, a driving I block secured thereto, a driving clutch mem member journaled within the deep recess and so formed in conjunction with theiinner rim surface of said blockas to provide tapering ways, elongated clutch rolls-within said ways, elongated -springimpelledfollower rolls no contact with said clutch rolls, an operating crank connected to said member, a detent clutch member journaled within the shallow recess and having in its perimeter cut away portions which in conjunction with the inner rim of said block form tapering ways, rolls within the latter, and means for holding said detent clutch stationary as to rotation.

l. In a force feed lubricator, the combi nation of the actuating shaft, a driving block having a hub that is secured to' said shaft, a driving clutch member journaled within the outer face of said block and surrounding said hub, tapering ways formed by the inner rim of said block and by cut away portions in the circumference of said mem- I ber, spring impelled clutch rolls within said ways, elongated diametrically opposite openings within said member, and a drivlng' crank loosely supported around the outer.

end of said shaft and having pins which extend within said openings for limiting the movement of the crank relative to the clutch member.

5. In a force feed lubricator, the combination of the actuating shaft, a driving block having a hub that is secured to said within'the outer face of said block and surrounding said hub, tapering ways formed by the inner rim of said block and by cut away portions inthecircumference of said member, spring impelled clutch rolls within said ways, elongated diametrically opposite openings within said member, and a driving crank loosely supported around said shaft and having a stationary driving pin, and an adjustable driving pin which pins extend respectively within said openings. 6. In a force feed lubricator, the combination of the actuz'iting shaft, a drivin block having a hub that is secured to sai y 7 Copiesof this patent may be obtained for shaft, a driving clutch member journaled Within the outer face of said block and surrounding said hub, tapering Ways formed by the inner rim of said block and by cut awayrporti'ons' in the circumference of said member, spring impelled clutch rolls With in said: Ways, a stationary detent clutch memberjournaled Within the rearface of said block and surrounding said hub, taperingways formedby the inner rim of said block and by cut away portions in the circumference of said detent member, spring impelled clutch rolls Within the lastnamed Ways, elongated diametrically opposite openings Within said member, and a driving crank loosely supported around the outer end of said shaft and having pins Which extend Within said openings for limiting relative movement between the driving clutch'member andtheicrank.

7. In a force feed lubricator, the combination With a stationary feed block, of an actuating shaft, a driving block secured to the shaft and having its opposite faces recessed, a driving clutch member arranged in one recessed face of the drlving block vand so formed in conjunction Withthe latter as to provide a tapering Way, a clutch element in the tapering Way to clutch the driving block and clutch member for movement in one direction only, means for operating the driving clutch member, a clutch detent arranged in the opposite recessed face of the driving block "and so formed in -con-;

BERNARD H. SKELLY.

five cents each. by addressing the Commissioner of Patents,

Washington, D. C. v 

